This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation, storage and quality assurance period for electric flat cars. This standard is applicable to low-voltage power supply type, cable reel power supply type, battery power supply type, and slider power supply type electric flat cars with a rated load capacity of 5 to 100 t. The power continuity rate is 25% and the working environment temperature is -20 ~+40℃. Other types of electric flat cars can also be used as a reference.